18217962021

素因数分解:

$3^1\times 7^1\times {\mathrm{3907}}^1\times {\mathrm{222043}}^1$

素因数の和:225960

約数の個数: 16

約数和(自身を含む): 27767934464

約数和(自身を除く): 9549972443

約数列:

[1, 3, 7, 21, 3907, 11721, 27349, 82047, 222043, 666129, 1554301, 4662903, 867522001, 2602566003, 6072654007, 18217962021]

約数ペア:

[(1, 18217962021), (3, 6072654007), (7, 2602566003), (21, 867522001), (3907, 4662903), (11721, 1554301), (27349, 666129), (82047, 222043)]